Fluid-displacing apparatus



B. SKIDMORE, JR.

FLUID DISPLACING APPARATUS.

APPLICATION FILED AUG-21,1919.

PatentedSept. 13,1921.

2 SHEETSSHEET l.

B. SKIDMORE, In.

FLUID DISPLACING APPARATUS APPLICATION HLED AUG-2|, 1919.

1,390,390 d pt- 13,1921;

. 2 SHEETSSHEET 2.

' is a specification.

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FLUID-DISPLACING area-us.

Specification of Letters ratent. Patented Sept, 13, 13211.

Application filed. August 21, 1919. serial No. 318,984.

To all whom it may concern:

Be itknown that I, BENJAMIN SKID- MORE, J12, a citizen of the United States, residin at Chicago, in the county of Cook new and useful Improvements in Fluid- Displacing Apparatus, of which the following This invent on relates to improvements in fiuid displacing apparatus, particularly adapted, though not necessarily limited in its use for creating a suction or pressure,

and one of the objects of the invention is to provide an improved apparatus of this character embodying a rotor operating to displace the liquid in such a manner that little centrifugal force or turbine action will be imparted to the liquid, causing the liquid to be delivered under pressure and with little circumferential velocity.

To the attainment of these ends and the accomplishment .a f other new and useful objects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrangement of the several parts, hereinafter more fully described and claimed and shown in i \the accompanying drawings illustrating this invention and in 'which- Figure 1 is a view partly in vertical section and partly in elevation" as taken on line 1--1, Fig; 2, of an apparatus of this character constructed in accordance with the principles ofthis invention.

Fig. 2 is a vertical sectional view as taken on line 2-2, Fig. 1'. z

3 is a vertical sectional view taken, on line 3- 3; Fig. 1.

Fig. 4 is a front elevation of Fig. 5;

Fig. 5 is a side elevation of Fig. 4.

Fig. 6 is a detail vertical sectional view of i the rotor.

Referring more particularly to the drawings the numeral 10 designates a casing of any suitable configuration and is provided with a liquid inlet 11. Passing through the casing is a shaft 12 journaled in suitable bearings 13 rovided with the usual stuffing boxes 14. he shaft 12 preferably extends beyond the casing and is journaled in additional bearings 15, having connected withone end thereof a clutch element 16 by means of which the shaft may be coupled with any suitable source of power.

Arranged within the casing is a fixed element 17 comprising a body portion and spaced laterally projecting extensions 18 so as to form an intermediate space 19 into which the liquid which enters the casing through the opening 11 will pass. This eleand gtate of Illinois, have invented certain.

ment 17 is held against rotation in any suitable manner and is hollow to provide passages 20 which communicate with an annular groove or channel 21 in the body or the member, and this groove or channel 21 is in constant communication with a channel 22 preferably arranged in the wall of the casing 10. The channel 22 is preferably provided with a portion 23 into which a fluid inlet pipe discharges at 24,,so that the fluid entering the inlet 24 and-being delivered into the portion 23v will past from the channel 22 into the channel 21 in the element 17, to be discharged therefrom into the passages 20, and through suitable outlet openings 25 as indicated by the arrows in Fig. 1.

The element 17 is of a size somewhat less than the interior of the chamber 10 so that the portions 18 thereof will be spaced from the adjacent'wall of the casing. Arranged within the casing is a rotor designated generally by the'reference numeral 26 in Fig. 1.

This rotor is connected with the shaft 12 for.

desired length but are preferably of a considerable length arranged substantially,

spirally about the element 17 and with the inner ends of each blade overlapping the inner end of the next adjacent blade.

These blades 29 may be spaced from eachother for any desired distance, and the ends or portions 2929"; 2929 of the respective blades are arranged substantially concentric With the. axis 12 of the rotor, while the parts 2929"; and 29.-29 are substantially parallel so that when the rotor is set in motion the blades as they are advancd will move into the liquid to take up a portion thereof. The portion of the liquid thus taken up will beconfined in the passage and will remain in a substantially quiescent con- .dition with the result that as the rotor is further actuatedithe walls of the passage will advance witli'respect to the liquid confined in the! passage and there will be little centrifugal force or'turbine action imparted to the liquid, while at the same time the liquid will have a slight radialfiow tobe force or turbine action Will be imparted to the liquid but, the .liquid will move outwardly in a radial direction.

During this operation of the rotor, the inlets 30 of the passages between the blades 29 will successively pass the outlet openings 25 of the element 17, with the result that as the blades advance they will gradually close and open the outlets 25 and with the further result that slugs of air or fluid will be taiten into the passages between the blades alternately with the slugs of liquid and, as the blades advance and first cut into and are advanced with respect to the liquid, the liquid will moveoutwardly in a radial direction and will be immediately delivered underpressure. As this pressure increases the liquid will be discharged from the casing.

, Communicating with the casing is a volute passage 31 having a dlscharge outlet 32 anditf desired a partition 33 may be provided in this volute passage.

It will thus be seen that with this improved construction little centrifugal force or turbine action will be imparted to the liquid and as the blades, or passages between the blades pass into. and out 0? communication with the outlets 25 of the fluid passage, the fluid will be taken in between the slugs of water and the latter will be maintained in as near its original shape as possible, as they willnot be flattened out by throwing the slugs of water against, the wallet of the passage, with the result that friction, is considerably reduced and at the same time the portion of the between the slugs of liquld will be unobstructed and free from the liquid resulting in the full cylindrical area for the fluid so that the eiliciency of the machine will be greatlyincreased.

Obviously any number of blades 29 form in passages therebetween may be provided.

'ith this construction and as the rotor is rotated the liquid contained in the space embodying a rotor having a rsooseo lit the rotor is incased within a housing having an inlet and an outlet for the liquid, the action of the rotor in the manner described will deliver the liquid to the housing under pressureat once with the minimum velocity. u

With this improved construction it will be manifest that the liquid will operate in the nature of a piston withthis-exception, that in the previous constructions the liquid pis ton is given velocity by the rotor, whereas in the present invention the liquid piston remains practically at rest while the rotor is in operation.

vlfith this improved construction displace-- ment will also be caused. by the involute part of the blades and during the time that this part of the blade is passing the fluid opening. The liquid during this, rotation of the rotor will be moving radiallyout ward and acts as a wall between the fluid openings so that when the blade is passing; the fluid opening the involutc part of the blade will cause a displacement.

Obviously many changes may be made in the details of construction and in the com bination and arrangement oi the several parts within the scope of the claims with out departing from the spirit of this inven tion and so long; as the parts operate in a manner that the rotor will impart little centriingal force or turbine action to the liquid.

-What is claimed as new is v 1; An apparatus ofthe character described, embodying a casing having a liquid inlet Hill and a discharge outlet, a rotor mounted in the outlets of the passages being substantially parallel. and substantiallly concentric with the axis of rotation of the rotor, where'- by little centrifugal force or turbine action will be imparted to the l id as the rotorcperates therein and the olades more there throueh,

2 an oi the character described speed of ,rotation, said rotor embodying a pl ralityv of blades arranged. about the axis of rotation ofl the rotor and spaced therefrom, said blades being spaced from each other and cooperating to form liquid passages therebe tween, the portion of roxirnate blades adjacent the outlets of t 1e passages being in substantially parallel cirples concentric with the axis of rotation of the rotor, wherebylf. little centrifugal force of turbine action willbe imparted to the liquid as the rotor operates therein and the blades move thereopening adjacent the path of movement of the inletsof said passages, the relative movement of the liquid and the said passages opcrating ta create a suction in the said con duit.

3. An apparatus of the character described embodying a rotor having a high speed of rotation, said rotor embodying a plurality of blades arranged about the axis of rota tion of the rotor and spaced therefrom, said blades being spaced from each other and cooperating to form liquid passages therebetween, the portion of roximate blades adjacent the outlets of t e passages being in substantially parallel circles and concentric with the axis of rotation of the rotor, where by the liquid between thd blades will be maintained in a substantially quiescent condition and substantially no centrifugal or turbine action will be imparted to the liquid between the blades as the blades and the liquid therebetween are displaced relatively one with relation to the other.

4. An apparatus of the character described embodying a rotor having a high speed of rotation, said rotor embodying a plurality of blades arranged spirally about the axis of rotation of the rotor, said blades having portions forming substantially parallel circles and cooperating to form fluid passages therebetween, the said portions being concentric with the axis of rotation of the rotor whereby the fluid inthe said passages will be maintained substantially quiescent as the bladesand fluid therebetween are displaced relatively one with relation to the other and whereby substantially no centrifugal or turbine action will be impartedto the fluid between the blades and the fluid will be displaced radially with respect to the axis of the rotor.

5. An apparatus of the character described embodying a rotation, said rotor embodying a plurality of blades arranged spirally about the axis of rotation of the rotor, said blades having portions forming substantially parallel circles and cooperating to form fluid pasn'es therebetween, the said portions being rotor having a high speed of centric with the axis of rotation of the axis of the rotor, and means whereby the fluid may be introduced axially to said rotor.

6. An apparatus of the character described embodying a rotor having a high speed of rotation, said rotor embodying a plurality of blades arranged spirally about the axis of rotation of the rotor, said blades having.

portions forming substantially parallel circles and cooperating to form fluid passages therebetween, the said portions beingconcentric with the axis of rotation of the said rotor, whereby the fluid in the said passages will be maintained substantially quies-' cent as the blades and fluid therebetween are displaced relatively one with relation to the other V and whereby substantially no centrifugal or turbine action will be imparted to the fluid between the blades and the fluid will be displaced radially with respect to the axis of the rotor, and avolute chamber in which the said rotor operates, said chamher having an inlet opening and an outlet opening for the fluid.

7. An apparatus of the character described embodying a rotor having a high speed of rotation, said rotor embodying a plurality of blades arranged spirally about the axis of rotation of the rotor, said blades having portions forming substantially parallel circles and ooopdrating to form fluid passages therebetween, the said portions being concentric with the axis of rotationof the rotor whereby the. fluid in the said passages will be maintained substantially quiescent as the blades and fluid therebetween are displaced relatively one with relation to the other and whereby substantially .no cen trifugal or turbine action will be imparted to the fluid between the blades and the fluid will be displaced radially with respect to the axis of the rotor, a volute chamber in which the said rotor operates, said chamber having an inlet opening and an outlet opening for the fluid, and one or more partitions in the chamber dividing the same into fluid passages.

In testimony whereof I have signed my name to this ecification on this 7th day of July, A. D. 919.

BENJAMIN SKIDMORE, JR. 

